If you have anything in /etc/aliases, move it to /etc/hostname.XX
on lines after the first one, with stuff line inet alias x.y.1.2 255.255.x.x

Edit /etc/master.passwd with vipw, and in between 0:0::0:0 on root's password
line, make it 0:0:daemon:0:0....For yourself and other administrators, your
lines should be 0:0:staff:0:0....This gives you unlimited process
limits...Everyone else is subject to other limits in /etc/login.conf